158492781

素因数分解:

$3^4\times {\mathrm{881}}^1\times {\mathrm{2221}}^1$

素因数の和:3114

約数の個数: 20

約数和(自身を含む): 237136284

約数和(自身を除く): 78643503

約数列:

[1, 3, 9, 27, 81, 881, 2221, 2643, 6663, 7929, 19989, 23787, 59967, 71361, 179901, 1956701, 5870103, 17610309, 52830927, 158492781]

約数ペア:

[(1, 158492781), (3, 52830927), (9, 17610309), (27, 5870103), (81, 1956701), (881, 179901), (2221, 71361), (2643, 59967), (6663, 23787), (7929, 19989)]